Shuttle-operating mechanism for narrow-ware looms.



E. R. HOLMES. SHUTTLE OPERATING MEGHANISM FOR NARROW WARE LOOMS.

APPLICATION FILED APR. 11, 1907.

914,048. Patented Mar. 2, 1909.

2 SHEETS-SHEET 1.

Rs co., wasumamnfnrc,

B. R. HOLMES. I SHUTTLE OPERATING MECHANISM FOR NARROW WARE LOOMS.

APPLIOATION FILED APR. 11, 1907,

9 1 4,048 Patented Mar. 2, 1909.

2 SHEETS-SHEET 2.

UNITE STATES rannr which.

ELBRIDGE R. HOLMES, OF WORCESTER, MASSACHUSETTS, ASSIGNOR TO CROMPTON & KNOWLES LOOM WORKS, A CORPORATION OF MASSACHUSETTS.

SHUTTLE-OPERATING MECHANISM FOR NARROW-WARE LOOMS.

No. e1e,04s.

Specification of Letters Patent.

Patented March 2, 1909.

Application filed April 11, 1907. Serial No. 367,505.

To all whom it may concern:

Be it known that I, ELBRIDGE R. HOLMES, a citizen of the United States, residing, at W orcester, in the county of Worcester and State of Massachusetts, have invented certain new and useful Improvements in Shuttle-Operating Mechanism for Narrow-Ware Looms, of which the following is a specification.

My invention relates to shuttle operating mechanism for looms, and particularly to shuttle operating mechanism for narrowware looms, or looms for weaving ribbon, tape, etc., in which a series of shuttles are used, ordinarily arranged in a single row, and adapted to have a reciprocating movement, first in one direction, and then in the other, by a reciprocating rack and a series of pinions, and at the end of each movement of the shut ties to have a dwell as the lay beats up.

The object of my invention is to provide an improved shuttle operating mechanism for looms of the class referred to, which will be of simple construction and operation, and which will be preferably located at one end of the loom, outside of the loom frame, and connected, through straps or flexible connec tions to the racks for operating the swivel shuttles; said straps or iiexible connections are preferably located on the same side of the loom as the operating mechanism, and pass around suitable guiding sheaves.

In my shuttle operating mechanism I employ a system of spur gears, which has an intermediate spur gear with two toothed surfaces, or two gears mounted on a swinging arm, and carrying a crank pin, which is preferably adjustable on said gear, and is connected with a second swinging arm, so that the axis of said gear or gears will be moved, relative to the driven gear for operating the swivel shuttle racks through a crank mechanism connected with said driven gear, and thus cause a dwell of said driven gear.

My invention consists in certain novel features of construction of my improvements as will be hereinafter fully described.

I have only shown in the drawings a detached portion of a narrow-ware loom of the class referred to, of ordinary construction, with my improvements in shuttle operating mechanism combined therewith, sufficient to enable those skilled in the art to understand the construction and operation thereof.

Referring to the drawings :Figure 1 is an 1 end view of the lay, and a detached portion of a loom side, and of my improvements in shuttle operating mechanism, looking in the direction of arrow at, Fig. 2; the fly wheel shown in Fig. 2 is not shown in this figure. Fig. 2 is an edgeview of the parts shown in the loom frame is shown in section. Fig. 3 is a sectional view, on line 3, 3, Fig. 2, look ing in the direction of arrow 0, same figure, and showing the gearing. Fig. 4 is a section, on line 4, 4, Fig. 3, looking in the direction of arrow d, same figure. Fig. 5 shows a modified construction of the crank arm connector rod for the belt.

In the accompanying drawings, 1 is the loom side or frame, 2 the lay beam supported on lay swords 3, only one of which is shown, which are mounted at their lower end on a rock shaft, not shown, in the ordinary way. The lay beam 2 has a swinging movement communicated thereto, through a crank connector 4 to the crank shaft 5, in the usual 5 is a fly or hand wheel fast on the crank shaft 5.

All of the above mentioned parts may be of the usual construction and operation.

I will now describe my improvements in shuttle operating mechanism.

Fast on the driven crank shaft 5 is a gear 6, outside of the loom frame, which meshes with and drives an intermediate gear 7 loosely mounted on a stud 8. The stud 8 is carried in the boss 9 on a swinging arm 9, which has its hub 9 loosely mounted on the crank shaft 5, see Fig. 4, and is held from longitudinal movement by a collar 10 fast on said shaft, and the hub 11 of a gear 11, loosely mounted on the crank shaft 5.

The gear 7 has attached thereto, and in this instance integral therewith, a gear 12, which meshes with and drives the gear 11. The gear 11 meshes with and drives the gear 13, having a hub 13 loosely mounted on a stud 14 extending out from the stand 15, secured to the loom side, see Figs. 2 and 3. The gear 13 has a double crank mechanism combined therewith, consisting of a crank arm 16, in this instance made integral with the hub 13 of the gear 13 and having adjustably attached thereto, by means of a bolt 17 ex tending through an elongated slot in the crank arm 16, the rod head 18 of a rod 18, which preferably carries at its lower end a Fig. 1, looking in the direction of arrow 1);

grooved pulley 19. around which passes a strap 20, one end 20 of which is attached to a stud or pin '21 on a stand 22, and the other end passes around a guide-sheave or pulley 23, having its hub loosely mounted on a rod 24 supported in suitable bearings on the stand 22 secured to the loom frame. From the guide sheave 23 the belt 20 passes over a guide pulley 23 on the lay beam 2 to the reciprocating rack of the shuttle motion, not shown. double crank mechanism, is adjustably secured by the bolt 17, extending through an elongated slot or opening 25 in said arm, see Fig. l, to the first mentioned crank arm 16, to rotate therewith and with the gear 13. The crank arm 25 has adjustably secured thereto, by a bolt 26 extending through an elongated slot or opening 25 in the crank arm 25, the rod head 27, on the rod 27. The other end of the rod 27 preferably carries a guide pulley or sheave 28, around which passes a belt 29, one end 29 of which is attached to the rod 21, and the other end passes around the guide sheave 30, see Fig. 2, located along side of the guide sheave 23, and having its hub loosely mounted on the rod 24. From the guide sheave 30 the belt 29 passes to the guide pulley 30 on the lay beam 2, and is attached to the reciprocating rack, not. shown, of the shuttle motion, not shown.

The intermediate gear 7 having the gear 12 fast thereto is provided with a crank in 33, which in this instance is carried on a pl ztte 31, which in this instance is adj ustably attached to the gear 7 by two screws or bolts 32, which extend through elongated slots or openings 31 in said plate 31, see Fig. 3.

On the crank pin 33 is loosely mounted the boss or hub 34 on one end of a swinging arm 34, the other end 34 of said arm 34 is loosely mounted on a stationary stud 35, on the stand 15, bolted to the loom frame.

By means of the swinging arm 9, carrying the stud- 8 forming the axis of the intermedi ate gears 7 and 12, and the crank pin 33 carried on said gear 7, and the swinging arm 34 connected with said crank pin, the gear 7 and the gear 12 have in addition to their rotary movement through the driving gear 6 a swinging motion in a vertical plane as indicated by broken lines in Fig. 1, so that they are moved around on the gear 6, leaving the driven gears 11 and 13 at rest at regular predetermined intervals, and for a predetermined time.

From the above description in connection with the drawings the operation of my improvements will be readily understood by those skilled in the art.

The rotation of the driven crank shaft 5 will rotate the gear 6, and through said gear, the gears 7 and 12 will be rotated, and through'gears 7 and 12 the gear 11 and the A second crank arm 25 of the ward movement of the lay, will communicate a half rotation to the gear 11 and also the gear 13, so that the double crank mech anism connected with said gear 13, will be carried from one extreme position, shown'in Fig. 1, to its opposite extreme position, and

through the connections and straps to the shuttle racks, and shuttles, not shown, move said racks and shuttles, to communicateto said racks and shuttles a com lete movement in one direction. At the en of said movement the continued rotation of the crank shaft 5, through gear 6 and gear 7 carrying the crank pin 33, connected by the arm 34 to the stationary stud 35, will communicate a swinging movement to the arm 9 loosely mounted on the crank shaft 5, and cause the gears 7 and 12 to move from the position shown by full lines in Fig. 1, to the position shown by broken lines in said figure,-and leave the gears 11 and 13 substantially at rest, and thus cause a dwell after each half rotation of the gear 13, and at the end of each movement of the shuttles and shuttle racks, as the lay beats up.

WVith one end of the belts 20, and 29 attached to a fixed point, andthe belts passing" around a pulley on the crank arm connector rods, the amount of movement communicated to the shuttle operating racks is'twice the movement of the crank arms 16 and 25. With one end of the belts 20, and 29 attached directly to the crank arm connector rod, as shown in Fig. 5, the amount of movement communicated to the shuttle operating racks is the same-as the movement of the crank arms 16 and 25.

By means of the plate 31, adjustable on the driven gear 7, and connected with the arm34 pivoted on the stationary stud 35, the throw or movement of said gear 7 and the gear 12, through the movement of the arm 9 carrying the stud 8 on which the gear 7 is mounted, may be varied as desired, and the amount of dwell of the gearll, and the gear 13 driven by the gear 11, may be varied as desired, said gears being stationary during the throw or movement of the gears 7 and 12, and consequently the amount of dwell at each end of the movement of the shuttles may be varied as desired.

The advantages of my improvements in shuttle motion for narrow ware looms will be readily appreciated by those skilled in the art. My shuttle motion is located on the outside of the loom end frame, Where it is readily accessible, and by myconstruction of the shuttle motion mechanism, the amount of movement of the reciprocating rack for the shuttles may be varied as desired, and the amount of dwell at the end of each movement of the shuttle rack may be varied as desired.

It will be understood that the details of construction of my improvements may be varied if desired.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is 1. In a shuttle motion for narrow ware looms, a crank, a crank connector having a pulley or sheave thereon, a belt attached to a stationary stand at one end and passing around said pulley or sheave, and over intermediate pulleys or sheaves to the swivel shuttle rack, and said intermediate pulleys or sheaves, and shuttle rack.

2. In a narrow ware loom, the combination with the loom end frame, of a shuttle operating mechanism, comprising a system of gears, gears intermediate said gears, a swinging arm carrying said intermediate gears, a crank pin mounted on one of said intermediate gears, and connected with a second swinging arm, and said second swinging arm.

3. I11 a narrow ware loom, the combination with the loom end frame, of a shuttle operating mechanism, comprising a system of gears, gears intermediate said gears,a swinging arm carrying said intermediate gears, a crank pin adjustably mounted on one of said intermediate gears, and connected with a second swinging arm, and said second swinging arm.

E. R. HOLMES. Witnesses JOHN C. DEWEY, M. I-IAAs. 

